This might just be bad timing. I don't think it's your OS upgrade, I think it's the Slack release they just pushed. I'm using Xenial and this broke for me this morning when I upgraded Slack's version, however I didn't change my OS version. This might be a slack bug?
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1827302 Title: 18.10 → 19.04 Alt-Tab cycling no longer includes Slack window To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xfwm4/+bug/1827302/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
